22216EAKD1 bearing: complete specifications & equivalents
The 22216EAKD1 is a ISO 15 radial bearing sized 80 x 140 x 33 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 80 mm |
| Outer diameter D | 140 mm |
| Width B | 33 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 278 kN |
| Basic static load rating C0 | 287 kN |
| Fatigue load limit Pu | 24 kN |
| Limiting speed (mechanical) | 3700 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 2050 g |
| Manufacturer designation | NTN 22216EAKD1 |
| Standard | ISO 15 |
| Catalog version | NTN Ball and Roller Bearings CAT.No.2203E |
| Last verified | 2026-10-01 |
Source: catalog reference (NTN Ball and Roller Bearings CAT.No.2203E) · extracted 2026-10-01
Parameters extracted from the official NTN Ball and Roller Bearings catalogue (NTN Ball and Roller Bearings CAT.No.2203E); NTN® is a trademark of NTN Corporation, used here for identification only — mpnbase is not an authorized NTN distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at ntnglobal.com.
Dimensions in inches & 22200-series range
| Bore d | 3.15 in |
|---|---|
| Outer diameter D | 5.512 in |
| Width B | 1.299 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 30 mm |
| Smallest bore in 22200-series | 25 mm |
| Largest outer diameter in 22200-series | 580 mm |
| Width range across 22200-series | 18–150 mm |
| Bore position in 22200-series (smallest first) | 12 of 32 |
| Bore above smallest 22200-series size | 55 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 22216EAD1 | NTN | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same NTN 22200-series envelope, cage and ratings; this is the tapered-bore execution (K, 1:12) of the cylindrical-bore 22216EAD1 — mounting (adapter/withdrawal sleeve or tapered seat, drive-up) differs. Verify shaft arrangement. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the 22216EAKD1 model number is decoded
For heavy radial load with misalignment on a 80 mm shaft, NTN supplies 22216EAKD1: sphered outer raceway, two roller rows, pressed sheet-steel window cage (EA high-capacity design), oil speed 4,600 r/min. Numbering ties 22216EAKD1 to its envelope and execution: same-number EA versus EM or plain variants share the 80 mm bore but differ in cage and sometimes mass, so they are quoted as separate articles. NTN prints two speeds for 22216EAKD1: 3,700 r/min grease and 4,600 r/min oil — the gap of 900 r/min reflects oil cooling of the heavy roller set. Pu 24 kN against C0 287 kN anchors the contamination derating; for dirty mining duty the adjusted life of 22216EAKD1 moves with cleanliness far more than with small C variations. On vibrating-duty shafts verify the radial clearance class and cage choice at order time; the open 22216EAKD1 leaves sealing and the C3/C4 clearance decision to the application drawing.
Typical equipment & failure modes
Common applications
- cement-mill and kiln auxiliary drives
- large gearbox and marine gear shafts
- wind-turbine gearbox and rotor bearings
- large vibrating screens and mining feeders
Known failure patterns
- raceway spalling at the roller ends when misalignment or deflection concentrates the line contact
- pressed EA cage fatigue under sustained vibration when minimum load is not maintained
- sliding wear and heat when relubrication intervals ignore the groove (D1/W33) supply path
- false brinelling on stopped machines exposed to screen or crusher vibration
- water-induced pitting in washdown or outdoor duty without effective external seals
Selection pitfalls — read before you substitute
- Mount the 80 mm ring with induction heat or the sleeve drive-up procedure; at 2050 g cocking damages the spherical raceways, and repositioning after seating is impractical.
- K and K30 are different tapers — K is 1:12 and K30 is 1:30 on the wide series; an adapter sleeve for one will not mount the other 80 mm bearing, and drive-up procedures differ.
- Self-aligning does not mean unlimited misalignment: beyond the catalogue angle the outer ring's spherical travel is exhausted and the 278 kN rating no longer applies.
- Oil relubrication toward 4,600 r/min needs drain and level design; flooding the 33 mm cavity churns heat through the heavy roller set and cage despite the higher oil speed figure.
- Oil relubrication toward 4,600 r/min needs drain and level design; flooding the 33 mm cavity churns heat through the heavy roller set and cage despite the higher oil speed figure.
- The 278/287 kN ratings, 24 kN Pu and 2050 g mass are NTN Ball and Roller Bearings CAT.No.2203E values for 22216EAKD1 (EA pressed-steel-cage/D1); another maker's same-envelope part revises internal geometry, so re-verify ratings and cage before substitution on vibrating or rated drives.
Frequently asked questions
What are the dimensions and catalogue data of 22216EAKD1?
22216EAKD1 is an NTN double-row spherical roller bearing to ISO 15: 80 mm bore, 140 mm OD and 33 mm width (3.15 × 5.512 × 1.299 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 278 kN, C0 287 kN, Pu 24 kN, grease limiting speed 3,700 r/min, oil 4,600 r/min, mass about 2050 g. It is open, with pressed sheet-steel window cage (EA high-capacity design) and a 1:12 tapered bore.
What is the difference between the K/K30 tapered bore and the cylindrical bore versions?
K denotes a 1:12 tapered bore. 22216EAKD1 mounts on an adapter sleeve (or tapered shaft seat) and is driven up to the specified residual clearance; its cylindrical-bore counterpart in the same envelope and ratings is 22216EAD1.
What do EA and EM mean on NTN spherical roller bearings?
EA is the NTN standard-capacity/high-capacity execution with a pressed sheet-steel window cage; EM is the high-capacity execution with a one-piece machined brass cage. Both use the optimised symmetric-roller design, but cage identity changes mass, speed behaviour and suitability for duties like vibrating screens, so they are separate order numbers. 22216EAKD1 is the EA pressed-steel-cage execution, listed with the ＊ ULTAGE new-generation mark.
What do D1 and W33 mean on 22216EAKD1?
D1 is NTN's outer-ring lubrication feature: an annular groove with oil holes around the outer ring, aligned with a housing grease port so lubricant reaches both roller rows directly. 22216EAKD1 carries D1; W33 is the equivalent industry-spelled annular-groove-and-holes feature seen on other executions.
How much misalignment and axial load can 22216EAKD1 take?
The sphered outer raceway compensates static and dynamic misalignment in the order of 1–2° (verify the exact 2203E figure for the 22200 series); beyond that, load concentrates on one roller row. Load is predominantly radial with a moderate axial share in either direction — 278 kN C / 287 kN C0 — but sustained pure axial load is not recommended because it unloads one row.
Reviewed & verified by the MPN Base engineering desk against source catalog NTN Ball and Roller Bearings CAT.No.2203E on 2026-10-01. Read our editorial & correction policy.